info.ephyra.answerselection.filters
Class OverlapAnalysisFilter

java.lang.Object
  info.ephyra.answerselection.filters.Filter
      info.ephyra.answerselection.filters.OverlapAnalysisFilter

public class OverlapAnalysisFilter
extends Filter

Generates overlap analyses for different answer extraction strategies. The filter can be added at more than one point in the pipeline, using different IDs to generate independent analyses.

This class extends the class Filter.

Version:

2008-02-10

Author:

Nico Schlaefer

Field Summary

private static java.util.Hashtable<java.lang.String,java.util.Hashtable<java.lang.String,java.lang.Integer>>	analyses Overlap analyses, usually at different points in the pipeline.
private java.util.Hashtable<java.lang.String,java.lang.Integer>	overlapAnalysis Current overlap analysis.
private static TRECPattern	pattern Pattern used to evaluate answer candidates.
private boolean	printing If this flag is set, an overlap analysis is printed every time the filter is applied.

Constructor Summary

OverlapAnalysisFilter(java.lang.String id, boolean printing)
Creates the filter and adds an overlap analysis for the given ID if it did not occur before.

Method Summary

Result[]	apply(Result[] results) Evaluates the answer candidates and updates the current overlap analysis.
java.util.Hashtable<java.lang.String,java.lang.Integer>	getOverlapAnalysis() Returns the current overlap analysis.
void	printOverlapAnalysis() Prints the current overlap analysis.
static void	setPattern(TRECPattern pattern) Sets the current pattern used to evaluate answer candidates.

Methods inherited from class info.ephyra.answerselection.filters.Filter

apply

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

pattern

private static TRECPattern pattern

Pattern used to evaluate answer candidates.

analyses

private static java.util.Hashtable<java.lang.String,java.util.Hashtable<java.lang.String,java.lang.Integer>> analyses

Overlap analyses, usually at different points in the pipeline.

overlapAnalysis

private java.util.Hashtable<java.lang.String,java.lang.Integer> overlapAnalysis

Current overlap analysis.

printing

private boolean printing

If this flag is set, an overlap analysis is printed every time the filter is applied.

Constructor Detail

OverlapAnalysisFilter

public OverlapAnalysisFilter(java.lang.String id,
                             boolean printing)

Creates the filter and adds an overlap analysis for the given ID if it did not occur before.

Parameters:

id - overlap analysis ID

printing - enable printing flag

Method Detail

setPattern

public static void setPattern(TRECPattern pattern)

Sets the current pattern used to evaluate answer candidates.

Parameters:

pattern - evaluation pattern

getOverlapAnalysis

public java.util.Hashtable<java.lang.String,java.lang.Integer> getOverlapAnalysis()

Returns the current overlap analysis.

Returns:

overlap analysis

printOverlapAnalysis

public void printOverlapAnalysis()

Prints the current overlap analysis.

apply

public Result[] apply(Result[] results)

Evaluates the answer candidates and updates the current overlap analysis.

Overrides:

apply in class Filter

Parameters:

results - array of Result objects

Returns:

identical array of Result objects